The Apogee cosine-corrected head provides NIST-traceable spectroradiometric measurements of photosynthetic photon flux in µmol m-2 s-1, irradiance in W m-2, and illuminance in LUX. Can be purchased with or without a configured sub-notebook laptop.

Model SPEC-PAR/NIR

Wavelength range: 350 to 1000 nm
Suggested uses:
- spectral reflectance imaging
- phytochrome photoequilibria
- yield photon flux

Model SPEC-UV/PAR

Wavelength range: 300 to 850 nm
Suggested uses:
- above photobiology functions
- measurement of shorter UV wavelengths

Both Models Include

• Calibration to an NIST-traceable lamp
  
• Cosine corrected head with leveling plate
  
• Two meters of fiber optic cable
  
• Rechargeable battery package
  
• USB2 cable for connection to laptop
  
• Custom software

Specificiations

• Detector: 2048 pixel 14 µm x 200 µm microelement array
  
• Dynamic Range: 1 to 4096 counts (± 0.5%)
  
• Signal to noise ratio(S/N): Up to 1000:1
  
• Linear Range: 0 - 2.1 absorbance units (< 0.5%)
  
• Exposure Range: 4 milliseconds to 60 seconds (synoptic multi-channel)
  
• Power Requirements: 220-250 milliamps at +5 volts DC (provided)
  
• Optical Cable: 2 meters armored cable with a 400 µm diameter fiber optic. Cables for Model SPEC-UV/PAR are UV-resistant, and cables for Model SPEC-PAR/NIR have low OH content to minimize infrared attenuation.
  
• Wavelength Accuracy: < 0.25 nm
  
• Wavelength Repeatablity: < 0.05 nm
  
• Wavelength Stability: < 0.001 nm per °C
  
• Base Unit Size: Model SPEC-UV/PAR: 15.5 cm x 11 cm x 8 cm; Model SPEC-PAR/NIR: 15.5 cm x 9.5 cm x 4 cm
  
• Base Unit Mass: Model SPEC-UV/PAR: 900 g; Model SPEC-PAR/NIR: 500 g